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production region | |||||||||||||
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Jura | Plateau | Pre-Alps | Alps | Southern Alps | Switzerland | ||||||||
avalanches SilvaProtect | main tree species | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± |
n/a | spruce | 29.8 | 2.2 | 37.2 | 1.7 | 50.4 | 3.6 | 56.2 | 3.7 | 21.2 | 8.7 | 39.6 | 1.3 |
fir | 22.7 | 1.8 | 18.5 | 1.3 | 25.0 | 2.7 | 4.7 | 1.2 | 5.5 | 3.3 | 18.8 | 0.9 | |
pine | 1.3 | 0.5 | 1.2 | 0.4 | 0.0 | 0.2 | 2.8 | 1.1 | 1.9 | 1.4 | 1.2 | 0.3 | |
larch | 0.7 | 0.4 | 1.9 | 0.7 | 0.1 | 0.1 | 12.9 | 2.3 | 21.3 | 5.8 | 2.9 | 0.4 | |
stone pine | . | 0.0 | . | 0.0 | 0.0 | 0.0 | 2.1 | 0.6 | 0.3 | 0.2 | 0.2 | 0.1 | |
other conifers | 1.0 | 0.5 | 1.7 | 0.4 | 0.0 | 0.0 | 0.1 | 0.1 | . | 0.0 | 1.0 | 0.2 | |
beech | 29.5 | 1.8 | 22.0 | 1.4 | 14.4 | 2.0 | 7.2 | 1.5 | 7.8 | 2.7 | 20.6 | 0.9 | |
maple | 4.5 | 0.7 | 3.3 | 0.4 | 3.3 | 0.9 | 1.9 | 1.0 | 0.4 | 5.6 | 3.3 | 0.3 | |
ash | 4.4 | 0.8 | 7.4 | 0.8 | 4.9 | 1.1 | 4.0 | 1.5 | 12.4 | 4.8 | 5.9 | 0.5 | |
oak | 2.3 | 0.7 | 3.4 | 0.5 | 0.5 | 0.2 | 1.4 | 0.5 | 0.9 | 1.7 | 2.4 | 0.3 | |
chestnut | . | 0.0 | 0.0 | 0.0 | . | 0.0 | -0.1 | 0.2 | 5.2 | 7.3 | 0.1 | 0.1 | |
other broadleaves | 3.7 | 1.0 | 3.4 | 0.5 | 1.4 | 0.7 | 6.7 | 1.7 | 23.2 | 6.1 | 3.8 | 0.4 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
inside perimeter | spruce | -24.0 | 61.0 | . | 0.0 | 38.4 | 12.4 | 65.6 | 4.2 | 57.9 | 11.7 | 58.4 | 3.8 |
fir | 57.0 | 40.3 | . | 0.0 | 27.1 | 8.6 | 7.2 | 2.1 | 5.8 | 3.6 | 11.4 | 2.3 | |
pine | -9.0 | 14.9 | . | 0.0 | -4.2 | 3.3 | 1.6 | 1.1 | -0.1 | 1.0 | 0.2 | 1.0 | |
larch | . | 0.0 | . | 0.0 | . | 0.0 | 13.1 | 2.4 | 11.3 | 15.2 | 10.5 | 2.5 | |
stone pine | . | 0.0 | . | 0.0 | . | 0.0 | 3.5 | 1.1 | 0.0 | 0.0 | 2.4 | 0.8 | |
other conifers | . | 0.0 | . | 0.0 | 0.2 | 0.2 | -0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | |
beech | 54.2 | 41.7 | . | 0.0 | 23.3 | 8.7 | 3.4 | 2.3 | 18.5 | 7.7 | 9.5 | 2.4 | |
maple | 10.8 | 8.3 | . | 0.0 | 7.6 | 2.9 | 1.7 | 0.6 | -0.3 | 0.7 | 2.6 | 0.6 | |
ash | 3.1 | 3.1 | . | 0.0 | 5.5 | 3.2 | 1.7 | 0.8 | -1.3 | 1.7 | 2.0 | 0.8 | |
oak | . | 0.0 | . | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | -0.0 | 0.0 | 0.1 | 0.1 | |
chestnut | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | |
other broadleaves | 7.9 | 5.0 | . | 0.0 | 2.1 | 1.3 | 1.9 | 0.8 | 8.3 | 4.7 | 2.8 | 0.8 | |
total | 100.0 | . | . | 0.0 | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
outside perimeter | spruce | 15.4 | 5.6 | 24.8 | 4.5 | 43.9 | 3.5 | 58.1 | 2.9 | 18.9 | 4.1 | 40.3 | 1.9 |
fir | 26.9 | 4.7 | 16.6 | 4.3 | 29.9 | 2.8 | 9.3 | 1.4 | 3.7 | 1.7 | 17.4 | 1.2 | |
pine | 2.1 | 1.1 | 0.6 | 0.4 | 0.4 | 0.4 | 2.6 | 1.1 | 0.6 | 0.5 | 1.3 | 0.4 | |
larch | -0.9 | 0.9 | 0.4 | 0.3 | 0.3 | 0.2 | 12.1 | 1.5 | 11.6 | 2.4 | 6.0 | 0.7 | |
stone pine | . | 0.0 | . | 0.0 | 0.2 | 0.2 | 1.0 | 0.3 | . | 0.0 | 0.4 | 0.1 | |
other conifers | 2.4 | 1.9 | 0.4 | 0.2 | 0.1 | 0.1 | 0.1 | 0.0 | 0.2 | 0.2 | 0.3 | 0.2 | |
beech | 39.8 | 5.5 | 31.5 | 4.7 | 16.4 | 2.3 | 7.5 | 1.8 | 34.1 | 5.4 | 19.7 | 1.5 | |
maple | 7.1 | 2.3 | 7.5 | 2.6 | 3.6 | 0.8 | 2.8 | 0.6 | 2.6 | 0.7 | 3.8 | 0.5 | |
ash | 5.3 | 1.7 | 13.8 | 4.1 | 4.3 | 0.9 | 2.6 | 0.6 | 4.8 | 1.5 | 4.7 | 0.6 | |
oak | 0.1 | 0.6 | 1.7 | 0.8 | 0.0 | 0.1 | 0.6 | 0.2 | 2.2 | 1.1 | 0.7 | 0.2 | |
chestnut | . | 0.0 | . | 0.0 | . | 0.0 | 0.1 | 0.1 | 5.2 | 3.3 | 0.9 | 0.6 | |
other broadleaves | 1.6 | 1.0 | 2.7 | 1.2 | 0.8 | 0.8 | 3.2 | 0.9 | 16.2 | 2.9 | 4.4 | 0.6 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | spruce | 27.4 | 2.0 | 36.2 | 1.6 | 46.9 | 2.5 | 58.8 | 2.0 | 23.0 | 3.6 | 40.9 | 1.0 |
fir | 23.6 | 1.7 | 18.4 | 1.2 | 27.3 | 1.9 | 7.3 | 0.9 | 4.2 | 1.4 | 18.0 | 0.7 | |
pine | 1.3 | 0.5 | 1.2 | 0.4 | 0.0 | 0.2 | 2.5 | 0.7 | 0.7 | 0.5 | 1.2 | 0.2 | |
larch | 0.5 | 0.4 | 1.8 | 0.6 | 0.2 | 0.1 | 12.6 | 1.2 | 13.1 | 2.5 | 4.2 | 0.4 | |
stone pine | . | 0.0 | . | 0.0 | 0.1 | 0.1 | 1.8 | 0.3 | 0.0 | 0.0 | 0.4 | 0.1 | |
other conifers | 1.2 | 0.5 | 1.6 | 0.4 | 0.1 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.7 | 0.2 | |
beech | 31.2 | 1.8 | 22.7 | 1.3 | 15.7 | 1.5 | 6.6 | 1.1 | 28.4 | 4.3 | 19.7 | 0.7 | |
maple | 4.9 | 0.7 | 3.6 | 0.5 | 3.6 | 0.6 | 2.3 | 0.4 | 2.0 | 1.0 | 3.4 | 0.3 | |
ash | 4.6 | 0.7 | 7.9 | 0.8 | 4.7 | 0.7 | 3.0 | 0.6 | 5.4 | 1.4 | 5.4 | 0.4 | |
oak | 2.0 | 0.6 | 3.3 | 0.5 | 0.3 | 0.1 | 0.8 | 0.2 | 1.8 | 0.8 | 1.8 | 0.2 | |
chestnut | . | 0.0 | 0.0 | 0.0 | . | 0.0 | 0.0 | 0.1 | 4.7 | 2.7 | 0.3 | 0.2 | |
other broadleaves | 3.4 | 0.9 | 3.3 | 0.5 | 1.2 | 0.5 | 4.2 | 0.8 | 16.5 | 2.4 | 3.9 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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